battle, major, First World War
Battle of the Ardennes
Battle of the Ardennes was a battle fought on 21 August 1914 at Ardennes, in what is now France; it lasted 2 days. It was part of the Western Front, which ran from 1914 to 1918. The recorded result: German victory. Recorded strength: Third Army; Fourth Army against 4th Army; 5th Army.
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Where it sits in the Western Front
Record
| Date | 21 August 1914 to 23 August 1914 | |
|---|---|---|
| Place | Ardennes, France 50.250N, 5.667E | |
| Kind | Battle, First World War | |
| Strength | Third Army; Fourth Army | 4th Army; 5th Army |
| Casualties and losses | 42,557 | 14,940 |
| Commanders |
| |
The ground today


The recorded site stands at about 460 m; within 10.0 km the ground runs from 319 to 669 m, 350 m of relief, hilly country and today it is 65% tree cover, 32% grassland.
Elevation from the Copernicus DEM GLO-30 (ESA, Airbus); land cover from ESA WorldCover 2021 (CC BY 4.0), within about 5 km of the recorded site. Computed, not recorded.Nearest engagements
- Battle of Amblève AD 716, 26 km N
- Battle of Liège 1914, 26 km N
- Battle of Sprimont 1794, 27 km N
- Siege of Bastogne 1944, 28 km S
- Battle of Les Avins 1635, 32 km NW
In the same war
- Before: Battle of Charleroi 21 August 1914
- After: Battle of Rossignol 22 August 1914
- All 121 engagements of Western Front
Elsewhere in 1914
- Battle of Tannenberg Poland
- Battle of the Falkland Islands Argentina
- Battle of Sarikamish Turkey
- Battle of Galicia Ukraine
- First Battle of the Masurian Lakes Russia
Combat data (CDB90)
| Attacker: FR 3RD & 4TH ARMIES | Defender: GER 4TH &5TH ARMIES | |
| Strength | 360,000 | 400,000 |
| Casualties | 17,196 (4.8%) | 12,720 (3.2%) |
| Mission accomplishment, 1 to 10 | 3 | 6 |
| Outcome | defender won | |
| Duration | 2 days | |
| Front width | 100 km | 100 km |
| Attacker advanced | -28 km | |
From the US Army Concepts Analysis Agency Database of Battles (CDB90, battle 264), public domain, in the CC0 tidy edition by Jeffrey B. Arnold. Figures are the database's estimates, compiled in 1990 from published histories, and may differ from the Wikipedia infobox above.
Battle of the Ardennes is one of 2,997 engagements of the 20th century in the atlas and one of 1,383 in present-day France.
Sources
Identity, coordinates, dates and the war from Wikidata Q221703, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of the Ardennes, revision 1370277566, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.